Went to gate...

Asked what was up

They told me that they just booked me on the 2nd flight as "back up" but that I was showing as having my original seat on the early flight (!?!)

They asked if I'd like to keep my original itin and I said yes

Anyone here ever experienced this?

I had 2 hours connection time with a 30 min delay wondering if that played into it, or if they may have anticipated being oversold?

Very odd especially since I couldnt even see the original flight on my MP account page at the time